General core deconditioning
Reduced endurance and activation of trunk stabilizing muscles, often related to a sedentary lifestyle, and commonly addressed as a preventive or supportive measure.
Because the core rarely sustains an acute traumatic injury on its own, most issues in this region relate to deconditioning, imbalance, or coordination problems that contribute to symptoms elsewhere, particularly the low back.
These issues are typically identified through functional assessment rather than imaging, since strength and motor control deficits generally do not appear on standard scans.
Relative clinical burden
General core deconditioning70
Diastasis recti35
Abdominal muscle strain30
Delayed core activation pattern45
Rectus abdominis strain (athletic)25
Sports hernia (athletic pubalgia)15
Common conditions
Diastasis recti
Widening of the connective tissue between the rectus abdominis muscles, common during and after pregnancy, which can reduce effective trunk support until addressed with targeted exercise.
Abdominal muscle strain
Overstretching or tearing of abdominal muscle fibers, often from sudden twisting or overuse in sport, producing localized pain that typically resolves with rest and graded loading.
Delayed core activation pattern
A motor control issue in which deep stabilizers activate later or less effectively than expected, frequently observed in people with a history of recurrent low back pain.
Rectus abdominis strain (athletic)
A more significant tear of the abdominal wall seen in sports involving forceful trunk rotation or extension, sometimes requiring a longer graded return to sport.
Sports hernia (athletic pubalgia)
A chronic groin and lower abdominal pain syndrome related to the muscles and tendons where the core meets the hip, common in sports with repetitive cutting and kicking motions.
Because core issues frequently overlap with or contribute to low back and hip conditions, assessment often considers the trunk alongside these neighboring regions rather than in isolation.
Keep exploring
More in Spine & core
Neck
The seven cervical vertebrae and the soft tissues that carry the head — posture load, disc and facet pain, and graded mobility work.
Pain frequency 82Lower Back
The lumbar spine bears more compressive load than any other spinal region, making low back pain the single most common musculoskeletal complaint worldwide.
Pain frequency 80